Troubleshooting - Deye Spring Se-F12 Bedienungsanleitung

9 Troubleshooting

To determine the status of the battery system, users must use additional battery status monitoring
software to examine the protection mode. Refer to the installation manual about using the monitoring
software. Once the user knows the protection mode, refer to the following sections for solutions.
Fault Type
Information
collection fails
Electrochemical
cell error
Over-voltage
protection fails
Under voltage
protection fails
Charge or dis-
charge high
temperature
protection fails
Charge low
temperature
Phenomenons
The cell voltage
sampling circuit is
faulty.
The cell temperature
sampling circuit is
faulty
The voltage of the cell
is low or unbalanced.
The cell voltage is
greater than 3.65 V in
charging state.
The battery voltage is
greater than 58.4 V.
The battery voltage is
less than 44.8V.
The minimum cell
voltage is less than
2.8V
The maximum cell
temperature is greater
than 60℃
The minimum cell
temperature is less
Possible Causes
The welding point for cell
voltage sampling is loose or
disconnected.
The voltage sampling terminal
is disconnected.
The cell temperature sensor
has failed.
Due to large self- discharge,
the cell over discharges to
below 2.0V after long term
storage.
The cell is damaged by external
factors, and short circuits,
pinpricks, or crushing occur.
The busbar input voltage
exceeds the normal value.
Cells are not consistent. The
capacity of some cells
deteriorates too fast or the
internal resistance of some
cells is too high.
The mains power failure has
lasted for a long time.
Cells are not consistent. The
capacity of some cells
deteriorates too fast or the
internal resistance of some
cells is too high.
The battery ambient
temperature is too high.
There are abnormal heat
sources around
The battery ambient
temperature is too low.
38
Solutions
Replace the
collection line.
Replace the
battery.
If the battery
cannot be
recovered due to
protection against
abnormality
contact local
engineers to
rectify the fault.
Same as above.
Same as above.
Same as above.